@metalgearsolid I would suggest you execute the commands of the installation procedure (as listed in the outout in your question) manually. This way you can see which is the first problem.
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mpyNov 6 '13 at 21:55

@mpy I got problem only at last which is showing in screenshot
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metal gear solidNov 7 '13 at 4:45

If you look more closely at the github repo you just visited -- you will notice that the command line in the README.md below the repository is cut off (truncated) due to the formatting of the HTML of the page.

If you want to edit the zsh theme, you must edit the file /home/<user>/.zshrc and you'll see an environment variable ZSH_THEM then you set your favorite theme, e.g. ZSH_THEME="ys" (more info in github site oh-my-zsh)